sinalight3
C6 Jerking Hissing Engine Light
Summary of the thread
The conversation centers around a 2011 Citroen C6 experiencing jerking during acceleration, a hissing noise, an illuminated check engine light, increased fuel consumption, and occasional stalling. These symptoms suggest a potential issue with the turbocharger or a defective boost pressure sensor. The recommendation is to have the vehicle inspected by a professional workshop to diagnose and address the problem, which in this case, involved replacing the faulty boost pressure sensor.
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4 comment(s)
sinalight3 (community.author)
Yes, it definitely feels like driving through treacle! It's incredibly sluggish. I haven't checked the boost pressure sensor directly yet, but I suspect it might be the culprit, especially with the hissing sound. Where exactly should I be looking for the sensor and its cable/plug? Any tips on how to check it without special tools?
friedrichsturm2
Honestly, I wouldn't poke around too much without proper knowledge. I tried and nearly made things worse. If you suspect the boost pressure sensor, and you're getting all those symptoms, I'd seriously consider taking it to a workshop. Could save you a lot of headaches. They can diagnose it properly and replace the sensor if needed. In my case, it solved all my problems!
sinalight3 (community.author)
I appreciate the advice! I think you're right; I'll take it to a trusted workshop to get it checked out. It's probably better to be safe than sorry. They found that the boost pressure sensor was defective. They charged 95€ including replacing the sensor and labor. Thanks again for sharing your experience!
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CITROEN
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C6
friedrichsturm2
That sounds suspiciously like what happened with my C6. Does it feel like you're driving through treacle? I had similar symptoms – the jerking, the hissing, the engine light... Was thinking it might be a boost leak somewhere. Did you check the boost pressure sensor?